Valve for internal-combustion engines.



NES.

Patented Aug. 6. 1912.

W. HENRY. VALVE POR INTERNAL GOMBUSTION ENGI APPLICATION FILED JUNI: 7,1905. 1,034,707.

E 5 M/Mz fl 2i m ...Lsws a on theintake stroke of the engine; Fi

a sectional vlew taken Vat. right angles to WILLI'AMHENRY, 0FPHILADELPHIA, PENNSYLVANIA.

I VALVE FOR IN TERNAL-COMBUSTION 'ENGIN specification of Letters Patent..patentar Aug-(5,1912,

Appncation aie'd June 7, isos. serial No. 264,161.

To all whom 'it may concern:

Be it :known thatx I, iViLLLxM HENRY, a

`citizen ot' thev United States, residing in Philadelphia, Pennsylvania,have invented certain,'Improvements in Valves for Internal-Conil)ustionEngines, ot' which the following is a specitication.'

My invention relates to internal combus tion engines, and consists ofcertain iinprovenients in the inlet and exhaustl valves employed inconnection with the same; the object of my invention being to simplifythe construction of and mode of operating such valves ;v to eti'eettheir cooling by the incoming charge, and to permit their ready removaland renewal should such action become necessary or desirable. l

4M v invention is fully shownl in the accompanying drawing, in which:Figure xl, is a sectional elevation of th valve structure forming the`subject of my invention, showing the position ot' the valves g. 2, is

Fig. l, showing the valves in their' position on the compressionandvpower stroke of 'the engine: Fig. 3, is a sgr-tional elevationsimilar to Fig.. l, showing the position of the valves on the exhauststroke of the engine;

`liig. l', is a sectional perspective view of the valves andv valve cagedetached. and Fig. 5,- is a sectional view of amodified form of valvecage.

In the drawing, l represents the .cylinder ot' the engine, which, invthe present in'- stance, of the type known as air cooledia, theexternal wall ot the cylinder being pro'-A vided with a4 series of ribsor vflanges providing for the radiation of the heat generated within thecylinder.

Mounted at the top of the cylinder and securedlthereto in any proper ordesirable manner, is a shell or casing 2 carrying .a valve cage 3 inWhich is mounted .the inlet valve 4 and exhaust Val-ve 5, such cagehaving an internal sleeve or annular Wall 6 providing seats 7 and 8 forsaid valves, and an additional seat 9 on its outer wall for the inletvalve.

The valve 4 controls the inlet of the explosive mixture while the valve5.controls theexhaust ot' the burned .and Waste gases. rl`he valve 4- isin theform of a sleeve or cylinder, and is disposed within. andadjacent,

to the outer wall of the"valve-cage"3; being. supported inthenormallyvraisedv position by .means of light Ysprings 1Q arranged inregistering aperturesll and l2 formed respectively in the wall of saidvalve l and in the wall of the-valve cage.I rlhe springs engage saidparts in the manner shown and serve to close the valve at thecommencement ofthe compression stroke and supportit in theclosed'position. The exhaust valve is carried by a stemv 13I fitting' asleeve ll within the valve cage; a spring 15 being disposed on said stembetween the upper and outer end ot' said sleeve, anda nut lt'on theupper end of said stein, and serving'to hold said valve in theclosedposit-ion. To depress 'the stem 13 and open the exhaust valve, a lever1T is carried by bracketslS secured to the top `of tne valve cage, and arocll9 operated by suitable i'neans, (usually a cam operated from thedriving shaft, not shown), engages the end of this lever raising thesaine and thereby depressing the stem ofthe exhaust valve and openingthe latter.

The annulark shell or wall G of the valve cage may be formed integralwith the same, such construction being preferable as there is nopossible chance forgtlie inlet charge and exhaust gases mixing orinterfering.

' The inlet 'valve 4, in the form ot a shellor sleeve as noted, isprovided with internal and external beveled flanges 2l and adapted toengage theseats 'T and 9 carried by the valve cage, .and these flangesvlie in the path of the incoming charge. The inlet valve?, opens undersuction caused by the movement of 'the piston on the intakestroke` andthe explosive mixture during its initial movement will find its ivayintothe c vlin- `der'on both sides of the valve l. To limit the movement ofthis valve, I provide the casing 2 with a shelf or ledge Q3 directly Y'below the vvalve cage and in the path ot the inlet'valve 4, and whensaid valve contacts therewith, by :tar the greater part ot the in-vcoming charge Will be diverted to the inter-k valve cage 3 andstriking'the internal annular wall 6, tends to keep these parts cool; at

the same time cooling vthe inlet valve and the springssupporting thesame. The n n coming charge as 1t passes to the cylinder 1s directedtoward the center by the' internal Tliexva-lve cage is provided withpacking.

r'ngs'fcarried byJits outer wall to insure no leakage -ofthe inletcharge or exhaust y gases/.between the same and the casing 2.Thisjioutside shell creasing 2 inclosing the valve-structure may beprovided with annularfribfs ini the sa-me manner as the cylinder,

"br with' other means, providing for the radiy15' ation of the heatvgenerated within-the eniv gine..andf'valve -structure and insuringthe jproper cooling of the same. A In the valve cage shown in Figs. 1, 2,3-ax1d 4, Ihave provided concentnc walls, 4the sleeve inlet-valve 4fitting snugly tothe outer wall. Such arrangement' may be `modiiedxinthe manner shown 'in Flg. 5, 'however, in l'which the sleeve valve 4.isfree "fffromlcontact with the -outer wall of the cage, andv isfguided 1nits 4movement by ribs 4a on' :its inner-'side contacting with the innerwall of -thebagefso that the fluid will pass down on both sides of thesleeve valve, and will escape between both flanges 21 and 22 and theirrespective seats. Inhe drawing herewith, Ihave shown r the valvecarrying structure mounted in a casingI secured to the cylinder. It willb e understood, however,'that such casing and cylinder may be made ino'ne piece'. I may also mount the valve structure at one side l.ofthecylinder and reverse the position .of the same so that the rod 19 canact directly on the stem of the exhaust valve. The gen- 40 eralarrangement and "operation of the valves will remain unchanged, however.

Thefstructurevwhich 5T: have designed, is extremelysimple ,inconstruction, cheaply manufactured and positive in its action. All partsf the'striicture-are readily renewable and either valve may., e removedand replaced in. the simplest manner.

a valve cage having ports, a wall carried by said cage and havlng seats,4a valve en- 'gaging the inner seat and controlling the v exhaust, and asleeve valve engaging the outer seat and controlling the inlet, both ofsaid valves opening in the same direction.

2. The combination with an internal combustion engine, of a casinghaving'inlet and exhaust ports, avalve cage mounted within' saidcaslngand having similar ports, a wall carried by said cage and havingvalveseats, a valve engaging'one seat and controlling the exhaust, and asleeve valve engaging thev other seatand controlling the' inlet of the 6e losive char e.

XP g

sive" charge.

valve seats, the outer Wall of said cage havsaid sleeve valve and saidcage'havingQreg- Having thus described my invention, IA claim and desireto secure by Letters Patent '1. The combinatibn,inavalve structure, ofAby said cage and having seats for said 3. The combination with aninternal combustion engine, of acasing having inlet and exhaust ports, avalve'cage mounted within said'casing and having similar port-s, Y aninternal annular'wall carried by said .70

` cage and having valve seats, a valve engaging the inner seat'and:controllinglthe ex-v haust, and a sleeve valve engagingthe outer -1seat and controlling the inlet of the explo- 4. The combination with anvinternal com#l 7 bustion engine, lof a valve cage having inlet andexhaust ports, an internal annular wall -formed integralwith said cageand having 8G ing a seat, a valveV engagingthe inner seat andcontro-lling the exhaust, and a lsleeve valve disposed concentric to theexhaust valve and'engaging the outer seat of the'in;A ternal annularwall and the4 seat formed yon the outer wall of the `cage .andcontrolling the-inlet of the explosive charge. v

.5. The combination with an internal combustion engine, of a valve ca e,a sleeve valve controlling-the inlet of t e explosive charge, saidsleeve valve and the w'all of saidv `cage having registering openings,and

springs disposed in said openings for hold-v ing said valve in thenormally cl/osed posi-V tion. i 1 f 6. The combinationwith an internalcome bustion engine, of a valve cage having inlet and exhaust ports, aninternal, annularl wall formed 'integral with said casi-ng and-'havingvalve seats, a valve'engaging th'e'in'ner' ofv said seats andcontrollinglthe" exhaust, a sleeve valve disposed concentricltolthefexhaust valve and engaging the outers controlling the' inlet of theexplosivec igey. I10

istering openings, and springs disposed'ln said openings for holdingsaid valve -in the normally lclosed position. v

7. The combination, in a valve structure, of a valve cage, an annularsleeve' ,having a 11 portion forming an inlet valve mounted in saidcage, an exhaust valve, bothoffsaid n valves being arranged to openinthe same direction, and an inner annular wall v carried 1l` valves. l 8.The combination with ansinternal com bustion engine, of a" valve. cageor casing having inlet land," exhaust ports, 'an inlet valvecomprisingan annular sleeve carried 12 by said cage, ahexhanstvalve,fand an inner e sleeve or annular wall against which said 1 valves seat,said ,casing 'having an addi#` -tional seat for the inlet valve.

.9. The combination with .an internal coin-12,` bustion engine, of avalve cage or casing, an inlet -val've comprising an -annular sleevecarried by said.casi ng, means for holding said valve normally closed,an exhaustvalve, ,mea11s-for holding the same to, its 13| i seat, aninner sleeve ory annular .wall can' friedby the cage against which saldvalves waage? seat, and -means for positively opening the exhaust valve.

10. A valve structure comprising a cas-v ing, .a valvecage carriedtherein, an internal wall carried by sald cage, an exhaust valve'seating against said wall, a sleeve let valve concentric to the exhaustvalvev and seating against said wall, and packing carried bv the outsidewall of the cage andcontacting with the inner wall of the casing.

i 12. A valve structure comprising a casinn' a valve cage mountedtherein', an eX- haust valve carried by said cage, -an inlet -mounted insai valve carried by said cage, and a shelf .or shoulder serving tolimit the movement of the inlet valve.

13. The combination, in a valvestructure,

'of a valve cage having inner and' outer walls, one of which isv ported,and an inlet valve comprisin a ported sleeve movably cage between saidwalls and having an annular iiange at one end, the inner-"wall carriedby said cage having an edge against which the flange of said sleeveseats.

14. The combination, in a valve4 structure,

of a /valve cage having inner and outerV walls,-one of which is ported,an inlet valve wall carried by the cage, havin a face or edge against-vwhich the flange'o said valve r seats, and means for holding saidsleeveA valve to its seat. l

15. The combination, in a valve structure, pf a valve cage havingconcentric walls with ports 'in the outer wall, an inlet valvecomprising an annular ported sleeve movably mounted in said cage betweenits walls, and

inner and .outer flanges carried by said by said walls.

, 16. The combination, in a valve structure,

of a valve cage having concentric walls with sleeve valve,

ports in the outer wall, an inlet valve comprising an annular portedsleeve movably mounted in said cage between its walls, inner and outerflanges carried by said sleeve for engagement with seats carried by saidwalls, and means for holding the flanges of said sleeve valve to theirseats.

17. The combination, in a valve structure,

of a valve cage, an annular sleevehaving a 'portion forming a valvecarried by said cage, a second valve disposed within, said cage7 both ofsaid vvalves being arranged lto open in the same direction, and a wallcarried by said cage intermediate said valves and having seats for thesame.

18. The combination', in a valve structure, of a valve cage having aninner annular wall, a sleeve valve eXteriorly mounted with respect tosaid wall and seating against the lower edge of the-same, 'and a secondvalve centrally disposed with respect to 'said annular wall vand valveand engaging a seat of lessdiameter than theseat for the both of saidvalves being operable independently of each other and contacting withtheir seats from the same direction. f

19. The combination, in a valve structure, of a valve cage having ports,said cage having :annular walls forming seats, a valve mounted sdas tocontact wi'ththe seat of least diametercarried by one of said walls, anda sleeve valve encircling said rst valve, said sleeve valve beingmovably mounted in said cage and contacting with a seat adjacent theseat of smallest diameter on the outer wall of said cage, both of said.val-ves being varranged to openin the same direction. A i l y 20. Thecombination of a valve cage having inner -and outer walls, one of which1s ported, a sleeve .valve slidably mounted eX-v teriorly of said innerwall, and an exhaustvalve mounted interiorly of said inner wall, theopening through the latte-r forming a passage forthe exhaust.

In testimony whereof, I have signed my name to this specification, inthe presence of l two subscribing witnesses. sleeve for engagement. withseats carried MRRAY C. BOYER, Jos. H. KLEIN.4

Copies of this'patent may be obtainedlfor've centspeach, by addressingthe Commissioner of Patents,

' Washington, D. C.V

and with a seat

